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insert into table1
select field1,field2,... from table2
where ... 
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insert into table1(field1,field2,...)
select field1,field2,... from table2
where ...
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strSql.Append("insert into tny_surveyArea(");
                        strSql.Append("surveyAreaId,TaskID,biologyId,biologyType,generationId,wormAgeId,statusId,damageCodeId,occurArea,deadTreeCount,Remark,SurveyTypeId,SurveyDate,surveyUserID,inputUserId,CheckStatus,GPSCoor,IsCheckData,SmallFieldID,Geometry, Geometry_XLO, Geometry_YLO, Geometry_XHI, Geometry_YHI");
                        strSql.Append(")");
                        strSql.Append(" select ");
                        strSql.Append("'" + model.surveyAreaId + "',");
                        strSql.Append("" + model.TaskID + ",");
                        strSql.Append("'" + model.biologyId + "',");
                        strSql.Append("'" + model.biologyType + "',");
  &nb


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create database yongfa365_com  
on 
( name = yongfa365_comt,  
  filename = 'd:\yongfa365_com.mdf',  
  size = 4,  
  maxsize = ......

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ALTER TABLE AA DROP COLUMN  DEP;
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2¡¢ALTER TABLE AA SET UNUSED("DEP") CASCADE CONSTRAINTS;
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ALTER TABLE AA DROP UNUSED COLUMNS;
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alter table table_name add mmm  varchar2(10);
update ta ......
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